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      저자 : Mohd Zafar Iqbal (검색결과 2 건)
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      • KCI등재

        A review on electrochemical conversion of CO2 to CO: Ag-based electrocatalyst and cell configuration for industrial application

        Mohd Zafar Iqbal,Shahla Imteyaz,Chandan Ghanty,Santanu Sarkar 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-

        The current review discusses the recent advances in Ag-based electrocatalysts for electrocatalytic conversionof CO2 to CO. The comparable electrocatalytic activity, stability, and lower cost of the Ag-based catalystswith that of Au- and Pd-based catalysts make the former commercially more viable for theelectrochemical CO2 conversion to CO. The challenges associated with the electrochemical CO productionare discussed. The impacts of the surface composition, surface area, particle size, porosity, lattice edge,crystal plane, and the defects on the catalytic activity of the electrocatalyst are also reviewed. CO2 electrolysers,especially the membrane electrode assembly (MEA)-based electrolyser and its constituents, aredescribed. The infrastructure of the gas diffusion electrode (GDE) and development thereof was foundcritical for the microenvironment of the liquid–gas interface near the catalyst surface in a GDE-based systemto sustain a higher activity over a period of time still remains a challenge. Hence, pathways to cautiouslyproduce benchmark GDEs are discoursed. The role of different ion-exchange membranes and theassociated challenges are reviewed. In the end, perspectives on catalyst design and the electrochemicalCO2 reduction (eCO2R) to CO process are given to assist in further improving the electrocatalyticefficiency.

      • KCI등재후보

        Flexural behavior of cold-formed steel concrete composite beams

        T. Valsa Ipe,H. Sharada Bai,K. Manjula Vani,Merchant Mohd Zafar Iqbal 국제구조공학회 2013 Steel and Composite Structures, An International J Vol.14 No.2

        Flexural behavior of thin walled steel-concrete composite sections as cross sections for beams is investigated by conducting an experimental study supported by applicable analytical predictions. The experimental study consists of testing up to failure, simply supported beams of effective span 1440 mm under two point loading. The test specimens consisted of composite box and channel (with lip placed on tension side and compression side) sections, the behavior of which was compared with companion empty sections. To understand the role of shear connectors in developing the composite action, some of the composite sections were provided with novel simple bar type and conventional bolt type shear connectors in the shear zone of beams. Two RCC beams having equivalent ultimate moment carrying capacities as that of composite channel and box sections were also considered in the study. The study showed that the strength to weight ratio of composite beams is much higher than RCC beams and ductility index is also more than RCC and empty beams. The analytical predictions were found to compare fairly well with the experimental results, thereby validating the applicability of rigid plastic theory to cold-formed steel concrete composite beams.

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